Practice of Science

You can use your five senses to make ____________ about the world around you.

• observations

• predictions

• inferences

Tags

NGSS.MS-LS1-8

Your conclusions after an experiment should always be based on _____________.

• opinions

• your hypothesis

• evidence

• the test

Answer explanation

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

What is the purpose of a control?

• To collect data

• To compare with your results and ensure they are valid

• To explain your data

• To make sure your results are random

Why do procedures need to be detailed and step-by-step?

• To check your grammar

• So you can see if you made a mistake

• So the experiment can be replicated by others

• To make sure your variables are correct

Answer explanation

The cat likes the salmon flavor better than the chicken flavor

• observation

• opinion

Tags

NGSS.MS-LS1-8

The cat ate more of the chicken flavored food each day than any other flavor.

• observation

• opinion

One of the ways you can make sure your results are valid is....

• to have more than one independent variable

• to do repeated trials of your experiment

• To only record data that supports your hypothesis

• to change your hypothesis after the experiment

Answer explanation

Tags

NGSS.MS-PS2-5

How many independent variables should there be in an experiment?

• 0

• 1

• 2

• more than 2

If I put both salmon and chicken-flavored food down for the cat, it will eat all the salmon flavor first.

• observation

• prediction

• data

You can use scientific tools such as _______ to collect measurable data.

• thermometers

• rulers

• graduated cylinders

• balance scales

• all of the above

Answer explanation